看拼音，写词语。

(1)The letter was ____  to my headmaster by a postman yesterday.

(2)I couldn't help ____  when I read the funny story.

(3)Of all the boxes, the one under the table is the ____ .

(4)The little boy fell down from the tree and hurt ____ .

(5)I am proud of my son because he is the____  of the sports meet.

   A plant makes its own food in its leaves . Water comes to the leaves through the roots . Air gets into the leaves through very small holes . The green coloring in the leaves uses the water and air to make the food for the plant . It also needs sunshine because a plant can make food only when the sun is shining.
   Animals and people could not live without green plants . They both eat plants . People and some animals also eat the meat of some animals and these animals eat plant